package cn.neusoft.util;

import java.text.DecimalFormat;
import java.util.Random;

public class RandomUtil {
 
	private static final Random random = new Random();
 
	private static final DecimalFormat fourdf = new DecimalFormat("0000");
 
	private static final DecimalFormat sixdf = new DecimalFormat("000000");
 
	public static String getFourBitRandom() {
		return fourdf.format(random.nextInt(10000));
	}
 
	public static String getSixBitRandom() {
		return sixdf.format(random.nextInt(1000000));
	}
}